292 



BRITISH BIRDS. 



had been described by Hemprich and Ehrenberg as long ago as 1832. 

 My friend Mr. Danford afterwards procured a large series ; and every one 

 admits it now as a good species. In this series, however, the white on the 

 wing varies to such an extent that it seems probable that in Asia Minor 

 the two species interbreed. 



Still further to the east, in the Himalayan range, another very nearly 

 allied species (Ruticilla hodgsoni] is found, in which the white patch on the 

 secondaries is slightly more developed ; but it has the wing more rounded. 

 Further investigation may possibly prove that Ehrenberg's Redstart is 

 an intermediate form between this species and the Common Redstart. 



